An artist built seesaws into the U.S.- Mexico border and invited kids to play on them (upworthy.com)

A set of bright pink teeter-totters extend into both the U.S. and Mexico through the barrier between the two countries. Children and adults on both sides of the border play together, seesawing up and down, their view of one another partially obscured by the vertical steel slats that separate them.

Ronald Rael, professor of architecture at the University of California, Berkeley, and Virginia San Fratello, associate professor of design at San José State University, came up conceptual drawings for the "Teetertotter Wall" in 2009. With the help of others, the two professors created the scene this week near El Paso, Texas and Ciudad Juárez, Mexico, and shared images and video of it on Instagram.

"The wall became a literal fulcrum for U.S.-Mexico relations," Real wrote on Instagram, "and children and adults were connected in meaningful ways on both sides with the recognition that the actions that take place on one side have a direct consequence on the other side."

Raell said the event was "filled with joy, excitement, and togetherness."

The images are beautiful and uplifting, yet heartbreaking and tragic at the same time.

To read more of Annie Reneau's article, please click here.